package cn.aposoft.mq.kafka.admin.cluster;

import org.apache.kafka.clients.admin.Admin;
import org.apache.kafka.clients.admin.DescribeClusterResult;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.KafkaFuture;
import org.apache.kafka.common.Node;

import java.util.Collection;
import java.util.Properties;
import java.util.concurrent.ExecutionException;

public class DescribeCluster {

    public static void main(String[] args) {
        Properties p = new Properties();
        p.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "aposoft.cn:10091,aposoft.cn:10092,aposoft.cn:10093");// kafka地址，多个地址用逗号分割
        try (Admin admin = Admin.create(p);) {
            DescribeClusterResult result = admin.describeCluster();
            KafkaFuture<String> clusterIdFuture = result.clusterId();
            System.out.println("clusterId:" + clusterIdFuture.get());
            KafkaFuture<Node> controllerFuture = result.controller();
            Node controller = controllerFuture.get();
            System.out.println("controller node:" + controller);
            KafkaFuture<Collection<Node>> nodesFuture = result.nodes();
            Collection<Node> nodes = nodesFuture.get();
            System.out.println("nodes:" + nodes);
        } catch (ExecutionException e) {
            e.printStackTrace();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

}
